interface OpenEdge.DataAdmin.Lang.Collections.ICollection:

   method public logical Add (input o as Progress.Lang.Object).
   
   method public logical AddAll (input c as OpenEdge.DataAdmin.Lang.Collections.ICollection).
   
   method public void Clear ().
   
   method public logical Contains (input Progress.Lang.Object).
   
   method public OpenEdge.DataAdmin.Lang.Collections.IIterator Iterator ().
   
   method public logical Remove (input o as Progress.Lang.Object).
   
   define public property Count as integer get. set.
   define public property IsEmpty as logical get. set.
   
end interface.